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Add CVE-2023-4807 fix to CHANGES and NEWS 

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22034)
This commit is contained in:
Tomas Mraz 2023-09-08 15:35:22 +02:00
parent d0ce81ae1a
commit ed65a9c52a
2 changed files with 23 additions and 2 deletions
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22
CHANGES
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@ -9,7 +9,27 @@
Changes between 1.1.1v and 1.1.1w [xx XXX xxxx] Changes between 1.1.1v and 1.1.1w [xx XXX xxxx]
*) *) Fix POLY1305 MAC implementation corrupting XMM registers on Windows.
The POLY1305 MAC (message authentication code) implementation in OpenSSL
does not save the contents of non-volatile XMM registers on Windows 64
platform when calculating the MAC of data larger than 64 bytes. Before
returning to the caller all the XMM registers are set to zero rather than
restoring their previous content. The vulnerable code is used only on newer
x86_64 processors supporting the AVX512-IFMA instructions.
The consequences of this kind of internal application state corruption can
be various - from no consequences, if the calling application does not
depend on the contents of non-volatile XMM registers at all, to the worst
consequences, where the attacker could get complete control of the
application process. However given the contents of the registers are just
zeroized so the attacker cannot put arbitrary values inside, the most likely
consequence, if any, would be an incorrect result of some application
dependent calculations or a crash leading to a denial of service.
(CVE-2023-4807)
[Bernd Edlinger]
Changes between 1.1.1u and 1.1.1v [1 Aug 2023] Changes between 1.1.1u and 1.1.1v [1 Aug 2023]

3
NEWS
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@ -7,7 +7,8 @@
Major changes between OpenSSL 1.1.1v and OpenSSL 1.1.1w [under development] Major changes between OpenSSL 1.1.1v and OpenSSL 1.1.1w [under development]
o o Fix POLY1305 MAC implementation corrupting XMM registers on Windows
(CVE-2023-4807)
Major changes between OpenSSL 1.1.1u and OpenSSL 1.1.1v [1 Aug 2023] Major changes between OpenSSL 1.1.1u and OpenSSL 1.1.1v [1 Aug 2023]